Database management, performance and parallel computing issues related to GIS; distributed GIS; location-based services; web-enabled databases; web-based surveys. Pioneer of web-based geo-information. Using the web to portray the people and places of Scotland. Dynamic display of earthquake information using the web. The Gazetteer for Scotland (supported by RSGS, the Robertson Trust and SCRAN). Scottish Definitive Place Name Gazetteer (supported by Scottish Government). Scottish Palaeoenvironmental Archive Database (supported by Historic Scotland). Scottish Wetlands Archaeological Database (with AOC Archaeology and Historic Scotland). Accessible GI metadata (with the Association for Geographic Information).